Automatic zeroing for a rolling mill position regulator



Sept. 7, .1965

Filed March 1, 1963 K. R. THOMPSON AUTOMATIC ZEROING FOR A ROLLING MILL POSITION REGULATOR 5O Sheets-Sheet 1 MLLSTAND I $EQUENGE"29\ MILLSTANILZS l SELECTOR l REFERENCE ROLL AND POSITION FEEDBACK 1 CONTROL ZERO j 3 ORREOTIONIL I CENTRAL 35 l MILLSTAND a CONTROL )3 M|LL2TAND.. 26 az gpizgggg ELEMENT ROLL POSITION FEEDBAGKF" a CONTROL con aou L MILLSTANDZ MILLSTAND 1 MILLSTAND a a 27 23 REFERENCEP ROLL AND POSITION FEEDBACK f, ZERO E: I srcoanzcrmg MlLLsTAND MILLSTAND 28 4 4 y REFERENCE ROLL AND l 38 POSITION FEEDBACK OVER CONTROL ZERO SHOOT coanecnon 53/ MILLSTAND4 1 INVENTOR. KENNETH R,THOMPSON .7 agin ATTORNEY Sept. 7, 1965 Filed March 1, 1965 K. R. THOMPSON AUTOMATIC ZEROING FOR A ROLLING MILL POSITION REGULATOR :50 Sheets-Sheet 2 AMPLIFIER AND NOT INVERTER INVERTING OR 0 AND mv @'CNOT -0Ro FIG.2A F|G.2B FIG.2C F|G.2D

ONE SHOT OR CIRCUIT TIME DELAY COIL U OR ONESHOT CJ' n.- F FIG.2G FIG.2H

RELAY COUNTER RESISTER coNTAc'rs RELAY CONTACTS SET III +r .,UE

8T FIG.2I FIG.2J FIG.2K

FIG.2L

EXCLUBIVE SHIFT OR REGISTER :g

X OUTPUT "PUT INPUT I STI s51; OR IN 0 PULSR o CARRY ADD 'i'o RSIT FIG.2N

RELAY FLIPFLOP F l 6.2 O FIG.2M m

E. RFF

I l 1 I FIG.2P

Sept. 7, 1965 AUTOMATIC ZEROING FOR A ROLLING MILL POSITION REGULATOR Filed March 1, 1965 30 Sheets-Sheet 5 N H STI S I ULSRO L STO RS |o,|

PG I I MOKC i s mvm w |88(F|G5-l90) FIG 3A |90(FlG.4-I88) F FIG. FIG. FIG.

FIG?) P 1965 K. R. THOMPSON 3,204,440

AUTOMATIC ZEROING FOR A ROLLING MILL POSITION REGULATOR Filed March 1, 1963 30 Sheets-Sheet 4 STIS ll TISEI' IE I SR L SR FIG.3B

p 7, 1965 K. R. THOMPSON 3,204,440

AUTOMATIC ZEROING FOR A ROLLING MILL POSITION REGULATOR Filed March 1, 1965 50 Sheets-Sheet 5 FIG.3C

Sept. 7, 1965 K. R. THOMPSON AUTOMATIC ZEROING FOR A ROLLING MILL POSITION REGULATOR Filed March 1, 1965 GLOOKIPULSE .and 0v AupuLsg J UUII UU U UllU U U UWJ U 2.0T

ov 3.LT

4.PHO

8. AVG

30 Sheets-Sheet 6 AUTOMATIC ZEROING FOR A ROLLING MILL POSITION REGULATOR 30 Sheets-Sheet 7 Filed March 1, 1963 Jil- f? 02km Q DEN N JL 0F:

P 1965 K. R. THOMPSON 3,204,440

AUTOMATIC ZEROING FOR A ROLLING MILL POSITION REGULATOR Filed March 1, 1963 50 Sheets-Sheet 8 SET ""cTR' RST 4 AND E NOT B B BBO 20 8 I92 5 AND P FIG.5A

p 1965 K. R. THOMPSON 3,204,440

AUTOMATIC ZEROING FOR A ROLLING MILL POSITION REGULATOR Filed March 1, 1965 30 Sheets-Sheet 9 M ILLSTAND SEQUENCE SELECTOR F 4 R 551 I83 I8 351- J "L I UPUL CTR L CTR w RST F R81- fi o/mo E R f' NOT 306 g) BFO F am AND L u N NOT.207

4 E6 E-OAND NOT AND Y NOT gm FIG. 5B

Sept. 7, 1965 K. R. THOMPSON AUTOMATIC ZEROING FOR A ROLLING MILL POSITION REGULATOR Filed March 1, 1965 30 Sheets-Sheet 10 Y g b-' I 461 R0 P 3-l2 STORS B8 BLO X T BLO Ba KO B8 BMO am a 2: am am n r FIG.5C

FIG. FIG. FIG.

5A 5B 5C Sept. 7, 1965 THOMPSON 3,204,440

AUTOMATIC ZEROING FOR A ROLLING MILL POSITION REGULATOR Filed March 1, 19.63 30 Sheets$heet l1 REFERENCE DATA BUFFERS 22|J LPUL IE1 E 23 OFFSET M H A7 2 mv.

FEEDBACK F 3 H INV. E

AND L NOT ZEROING Avoges FIG. 6A

Sept. 7, 1965 Filed March 1, 1963 REFERENCE K. R. THOMPSON AUTOMATIC ZEROING FOR A ROLLING MILL POSITION REGULATOR 3O Sheets-Sheet 12 FEEDBACK Se t. 7, 1965 K. R. THOMPSON 3,204,440

AUTOMATIC ZEROING FOR A ROLLING MILL POSITION REGULATOR Filed March 1, 1963 30 Sheets-Sheet l5 FIG.6C

Sept. 7, 1965 K. R. THOMPSON 3,204,440

AUTOMATIC ZEROING FOR A ROLLING MILL POSITION REGULATOR Filed March 1, 1963 30 Sheets-Sheet 14 434 LT an 3'5 3l9 T (|2| 3 4 U0 P Y x.

v NOT u (FlGJ-SOI) 5l6 (no.5 -|a'n AND Y NOT 2 AND Y NOT (Her-50a) 32:; -|av 323 x, F mv. AND 6 OR I 33 Y NOT AND L 1 N NOT FIG.6D

Sept. 7, 19 65 THOMPSON 3,204,440

AUTOMATIC ZEROING FOR A ROLLING MILL POSITION REGULATOR Filed March 1, 1963 30 Sheets-Sheet l5 M LLONOT P 349 AND L V 277 R I 34;! u uo'r 345 AND "v P ITR u NOT Mq F 353 L A/ \INV. am i? 3 OR OJ as i 0R N F 3" q ,JE

FIG.6E

Sept. 7, 1965 K. R. THOMPSON 3,204,440

AUTOMATIC ZEROING FOR A ROLLING MILL POSITION REGULATOR Filed March 1, 1965 30 Sheets-Sheet 16 ERROR BUFFER L. is? F --1" 9 P M so F 311 snss s11 's P J STI SE sR L 'BR L 'BR 'BR ST) Rs H O- leg 32 l6 a BOI (HG-712) (FlG.7-82l) (FlG.7-822) ANTICIPATION LOGIC AND ERO (A3) AND E 78 H 4 :7: J T 91%;; GI?

NO 368 K 7-3 I AND P NOT FIG.6F

Sept. "7, 19 65 K. R. THOMPSON 3,204,440

AUTOMATIC ZEROING FOR A ROLLING MILL POSITION REGULATOR Filed March 1, 1963 50 Sheets-Sheet 17 v -m F 8 l snssr U l P R IL W L roasr non x I M 4 2 (F I 0.7- 623) (FI 0.7-824) (Fl 6.7-825) (Fl6.'7"8 26) Sept. 7, 1965 K. R. THOMPSON AUTOMATIC ZEROING FOR A ROLLING MILL POSITION REGULATOR 50 Sheets-Sheet 18 Filed March 1, 1965 NOE GREG-hmh 0 u (Nd-nzOO (Nd-u 3 1 c z fin E m. J X g 06 m z .P Em im I z. z

0 mo z -om own ow 8566.. 536 2:

Sept. 7, 1965 K. R. THOMPSON 3,204,440

AUTOMATIC ZEROING FOR A ROLLING MILL POSITION REGULATOR Filed March 1, 1963 30 Sheets-Sheet 19 z i? 1' H 0 1'5 E: 23 rn 0 E2 01 in 2H 0 a: Q t .IEZ o n: g 23 5 Q :I: '15

m rg u. A o 9 0 co n I g z t s: a: E: 2 E o m x 5 o c 23 I N 5 a:

0: u. m --z 2 Q B Sept. 7, 1965 K. R. THOMPSON 3,204,440

AUTOMATIC ZEROING FOR A ROLLING MILL POSITION REGULATOR Filed March 1, 1963 30 Sheets-Sheet 20 A O r- Z 1 9 m k t .52 u. 2 z m \o L, Q :I

g 3 y 3 Q kl o m it jg g E 0:: v 0 "1' X m asulli] 

1. IN A SYSTEM FOR DETERMINING THE ZERO CORRECTION FACTOR FOR THE COACTING ROLLS OF A ROLLING MILL INCLUDING MEANS FOR INDICATING THE ACTUAL SEPARAING DISTANCE BEBETWEEN THE COACTING ROLLS, MEANS FOR INDICATING THE INDICATED SEPARATED DISTANCE BETWEEN THE COACTING ROLLS, MEANS FOR CALCULATING THE DIFFERENCE BETWEEN SAID ACTUAL SEPARATING DISTANCE AND SAID INDICATED SEPARATING, DISTANCE, AND MEANS FOR STORING SAID DIFFERENCE AS THE ZERO CORRECTION FACTOR. 